/*
 * Copyright 2021 NAVER Corp.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.navercorp.pinpoint.web.util.etag;

import java.util.Objects;

/**
 * copy from io.undertow.util.ETag
 */
public class ETag {

    private final boolean weak;
    private final String tag;

    public ETag(boolean weak, String tag) {
        this.weak = weak;
        this.tag = Objects.requireNonNull(tag, "etag");
    }

    public String getTag() {
        return tag;
    }

    public boolean isWeak() {
        return weak;
    }

    @Override
    public String toString() {
        if (weak) {
            return "W/\"" + tag + "\"";
        } else {
            return "\"" + tag + "\"";
        }
    }
}
